作者:Jinglin Liu、Xianxiu Xu、Dongwei Li、Lei Zhang、Kun Zhang、Qun Liu
DOI:10.1016/j.tetlet.2010.10.129
日期:2010.12
A series of vinylogous thiol esters 2,3 and 2,6-dioxo-1,2,5,6-tetrahydropyridines (cyclic vinylogous thiol esters) 4 were prepared in high to excellent yields from the tandem reaction of readily available alpha-alkenoylketene diethylthioacetals 1 and diethyl malonate. A plausible mechanism, which involves a base catalyzed retro-Michael ring opening of cyclohexanenes 2 to give vinylogous thiol ester 3, is disclosed. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.